Concerns financial gains (9)
I believe the answer is:
interests
This clue might be a double definition.
'concerns' is the first definition.
(I know this)
'financial gains' is the second definition.
The answer and definition can be both related to property as well as being plural nouns.
Perhaps there's a link between them I don't understand?
Can you help me to learn more?
(Other definitions for interests that I've seen before include "is fascinating" , "Activities or subjects which one enjoys" , "Financial involvements or matters of curiosity" , "Involvements, pastimes" , "Holds the attention" .)